Improvement in pipe-wrenches



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H. V. PAR'I ES PIPE WRENCH.

Patented Aug. 26

UNITED STATES I PATENT OFFICE.

HENRY V. FAR-TES, OF INDIANAPOLTS, INDIANA.

IMPRGi/EMENT IN PlPE-WRENCHES.

Specilica-tion forming part of Letters Patent No. 36,289, dated August-26, 18652.

To an 2071,0722, it may concern:

Be it known that l, HENRY V. FARIES, of

Indianapolis, in the county of Marion and State of Indiana, haveinvented a newand Improved \Vrench for Grasping and Turning Gaslipes,Bolts, and any article of cylindrical form; and I do hereby declare thatthe following is a full, clear, and exact description of 1 spondingparts in the two figures.

This invention consists in having a jaw of hook form connected by apivot to a rigid or stationary jaw at thecnd of a-handle or lever, thehook-jaw extending over the'face of the rigid jaw and all arranged, ashereinafter fully shown and described, whereby the implement, whenapplied to its work, will grasp the article to be turned firmly andadjust itself to its size or diameter without any special manipulationon the part of theoperator, and at the same time by the ordinarymanipulation of the implement release itself at each backward turn inorder to admit ofa fresh hold or grip being taken.

To enable those skilled in the art to fully.

understand and. construct my invention, I will proceed to describe it.-

A represents a handle or lever, which may be of any suitable length, andhaving at one end of it a jaw, B, formed by having a piece of steel of arequisite width welded to the handle or lever with its outer or faceside of segment or slightly convex form, as shown clearly in Fig. 1. Theface or convex surface of this jaw B is toothed or corrugated as shownin Fig. 1 at a.

0 represents a steel jaw of hook form, one end of which is provided witha tang, b, fitted in a. slot,- c, in the back part of the jaw B, andsecured therein by a pivot, d, onwhich the tang b is allowed to turn orwork freely.

The :free or disengaged end of the jaw 0 projects over the frontcn'd'of'the jaw B, and the face side of the former has quite a quick bend orturn,- forming nearly a right angle, as shown at e in Fig. 1.

D is a spring, which may be constructed of a flat steel plate. The loweror inner end of this spring is attached to thc back part of the jaw- 13,and its outer end bears upon the back part of thejaw C and has atendency to keep the same against the face of the jaw 13', as will befully understood by referring to Fig. 1. In Fig. 2 this spring is shownbroken oft, in order that the attachment of the jaw O to jaw B may beclearly shown.

If it should be desired tocconomize in the construction of the wrench,the jaws may be of iron and steel fitted in their face sides, in orderto prevent the wear or abrasion thereof. The operation will be readilyunderstood. The implement is adjusted to its work by the operatorraising the front and disengaged end of the jaw with his thumb, so thatthe article to be turned may fit in between it and the face of jaw 13,and by then turning the handle or lever A from right to left, asindicated by the arrow 1,'the two jaws will firmly The spring D is anadvantage, as itrenders the application of the jaw O to its work ratherquicker than it otherwise would beibut still it could be dispensed withwithout materially detracting from the value of the implement.

The advantage that this wrench possesses over all others that havepassed under my observation is thatit will adjust itself to its work andto articles of different thicknesses or diameter without any specialmanipulation onthe part of the operator, and in consequence of the jaw Qbeing arranged relatively with the jaw B, as shown, a very strong,wrench is obtained, as the pivot d of the jaw G is not' subjected tomuch strain, and a sliding jaw,

with, to operate as and for the purpose herein set forth.

2. The spring D, in combination with the ed in pipe-wrenches; jaws B 0,arranged as and for the purpose specified.

H. v. 'FARIES.

Witnesses:-

E. B. FRINK, CURRAN E. MoDoNALD,

